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  • Title: Predictors of neurocognitive impairment at 3 years after a first episode non-affective psychosis.
    Author: Ayesa-Arriola R, Pérez-Iglesias R, Rodríguez-Sánchez JM, Pardo-García G, Tabares-Seisdedos R, Ayuso-Mateos JL, Vázquez-Barquero JL, Crespo-Facorro B.
    Journal: Prog Neuropsychopharmacol Biol Psychiatry; 2013 Jun 03; 43():23-8. PubMed ID: 23228461.
    Abstract:
    BACKGROUND: Neurocognitive impairment is a core component of schizophrenia. However, patients show great variability in the level and course of deficits. The goal of the present longitudinal study was to identify predictors of neurocognitive impairment in first episode psychosis patients. METHODS: Neurocognitive performance was analyzed in a cohort of 146 patients 3 years after a first episode non-affective psychosis. Subgroups, impaired vs. unimpaired, were compared on baseline clinical, neuropsychological, premorbid and sociodemographic characteristics. RESULTS: Fifty-nine percent of participants presented general neurocognitive impairment and regression analyses demonstrated that clinical and sociodemographic characteristics were not predictive variables. A model composed of premorbid IQ, verbal memory and motor dexterity correctly classified 79.6% of the individuals. CONCLUSIONS: The present study gives information on frequency and neurocognitive profile of subtypes of patients showing impairment. Our results suggest general neurocognitive impairment is a trait dimension of the disorder related to specific cognitive dysfunctions.
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